Question

The number of vitamin A molecules in 500mg of it's capsule

Answer 1

Answer:

Actually that is 500 mg so we first have to convert it into grams

And then find the molar mass of Vitamin A formula which is 286 g.

Now 286g contain 6.023*1023

So 0.5 g contain how much ?

So we simply multiply the NA with the 0.5 and divided by 286

Which gives us about 1.05*10^21

Answer 2

Answer:

286g of Vitamin A contain 6.02×20^23 molecules

500mg/1000g=0.5g

0.5/286×6.02×10^23

1.5×10^21